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Weight1,000, 2,000, 3,400, 5,000

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1,2-Distearoyl-sn-Glycero-3-Phosphoethanolamine with conjugated methoxyl poly(ethylene glycol) (DSPE-mPEG) is
a linear phospholipid PEG conjugate which has both hydrophilicity and hydrophobility. Pegylated phospholipids are excellent
liposome or micelle formation materials that can be used for drug delivery. Pegylation of phospholipids significantly improves the
blood circulation time and stability for encapsulated drugs. These materials can also be used for targeted drug delivery by
modifying their surfaces with targeting ligands such as antibodies, peptides.